Jam-nut.



l J A M N U T. IIIIIIIIIIIIIIIIIIIII IIIII 9.

Speoinootion of ottof afet.

I atent d Jul 26, 1ofo.

I1 on the thfeoded Shonk of o bolt vvhen turned u thereon to o finol beafin ThiS I aocoInplish by the IneanS herein eSofibed and ShoWn in tho occompanying drovingS, in Which Figure 1 iS a Side vieW of the nllt; Fig, 2 a vievv of the inIier fooe of baso of the nIlt, and ig. 3 vievv of the nut vvhen 1ooked u on the bolt.

The base of inner face of the nnt A iS fofIned v ith o diagonal Slo t B extending acroSS the nut from Side fo Side, 9t of near the Iniddle aS Shown in Figs. 1 nd 2. The lip of tongue 0 Whioh boIInds the lovvef Side of the Slot is formed With o slight SWeH ing or ridge, vvhioh v7hen the nnt iS turned on tho bolt ond brought to a. firIn ond fina1 beofing, aS in Fig. 3 oouseS the li 0 to be forced inWofd ond thu opeTateS to oloSe of inoh to ethof tho edgeS of the slot. S -the Bp 0 i t uS forcedinWord its ed e outs Into ond destroyS the thfead of the ()1t aS the nut is tu ned np fo itS Eno1- I)oSiton, aS Shown in I ig. 3, thuS effeotivoly locklng the the li nut u on the bolt, A not of thiS forn1 nlay, it is tTlle, be reInoved locked in )loce, pliShed by obly gfeatef length nd 1everago thon thot vvhich vaS uSed to turn the nnt info posi tion; ond upon Such feInovol of the flut it vvi11 be foond thatthe threod of the bolt hoS been cut of shoved throughout itS length by the ed e of the li of tongue 0.

The fi ge o SWel u o tho lovveI' Side of Should be.only'slighfly f8ised obove the p ne of the boSe of the nnt, in order thot vvhen the 1i haS been foroed invvaTd ond the Slot iS Plnched Shllt, os in I ig. 3, the entire baSe of the not Inoy oome to o beofin 0 bllt this con on1 be oocoIn the thI:eade d bo1t,nd D

the uSe of o vvrench of oonSidef ofter hoving been thuS repreSentS the Sufface to bo Sooured io )1,ooo

thereon by the nuf.

vvhEt I oloiIn aS Iny invention to Seoure by IetterS 1 otent is A nut, having itS bose formed With o diagona1 Slot extending entifely oofosS the diooeteI' ofthe I111tto provide o li on eooh Side of the boro of the not, soid fips' olining, and-extending at oo oonto on le, ond

and deSire 'havin theiI' innef Surfoces threo ed,' ond their ce poftionS each forIned Wit1 pr0- tuberanoe for .the ufpose sef fofth.

oBBRT LEvVIS. vvitneSSes= v 

